Flat illuminating display device and light-emitting means therefor

Abstract

Flat illuminating display device with light emitting means to illuminate a film for display of an image applied to a display area, wherein the light emitting means are embodied as at least one light coupling unit arranged laterally at a translucent film thus forming a light duct, wherein the light such fed into the adjacent edge area into the film is reflected by a reflective layer, which is applied on at least one side, to homogeneously spread within the film, wherein a reflection screen to obtain a light emission is provided opposite of the display area to create said display area.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of International Application No. PCT / EP2011 / 051447, filed Feb. 2, 2011, published in German, which claims priority from German Application No. 10 2010 006 915.9 filed Feb. 4, 2010, and which claims the benefit of the filing date of U.S. Provisional Patent Application No. 61 / 301,378 filed on Feb. 4, 2010, the disclosures of which are hereby incorporated herein by reference.AREA OF THE INVENTION[0002]The invention relates to a flat illuminating display device comprising light-emitting means for illumination of a film to display an image applied to a display area. Further, the invention also relates to a particularly embodied light-emitting means within the framework of said illuminating display device. In addition, the invention relates to a commercial aircraft which is equipped with said flat illuminating display device in the area of the passenger cabin.[0003]The area of application of the illumin...

AI Technical Summary

Benefits of technology

The present invention relates to a thin and flexible display device that allows for a homogeneous display of an image using simple light-emitting means. The invention includes a display area made of a flexible film that can be adapted to curved surfaces. The light coupling unit allows for space-saving lateral feeding in of light into the thin film, with the light hitting the film surface at an optically favourable angle. The light duct and coupling out of light are applied to the film in a simple manner by means of coating technology. The image can be directly applied to the film or printed onto a cover film and easily exchanged. A semi-transparent colour layer can be applied to the display area to provide a disappearing effect when the light coupling unit is not switched on. The light coupling unit can be easily assembled or disassembled using clamping bars that have a clamping effect onto the film.

Problems solved by technology

This illuminating display device has the disadvantage that quite a considerable component thickness results from the curved reactor segments that are arranged behind the protective cover, which requires a corresponding installation space.

Therefore, said illuminating display device cannot be inserted into thin walls without that the rear part of the reflector insert protrudes from the wall.

Because of the synthetic base body that fulfils a carrier function, said technical solution, however, still appears to be quite thick for particularly flat applications and the display surface obtainable by it possesses a level embodiment and, in addition, is inflexible.

The technical solution disclosed in DE 197 03 195 A1 has the same disadvantages, because a plurality of inflexible display plates are stacked upon one another like a sandwich.

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